Uploaded May 2026 | Updated September 2026, 2 weeks ago
Think you know Fischer projections? It's easy when there's only one chiral center, but everything changes when you have a 2,3-dibromobutane backbone. Learn the 4 step conversion process that works for any molecule, big or small!
Today, we're dissecting the "zig-zag" skeletal to Fischer conversion, specifically focusing on the 2-center trap that causes 90% of stereochemistry errors on exams.
We are analyzing:
• The "Viewpoint" Method for multi-center molecules.
• The #1 Chiral Center "Wedge/Dash Flip Trap."
• How to verify your final configuration (R/S).
• The Right/Left Flip Trap
🧬Are you currently knee-deep in chirality? That's here: youtube.com/playlist?list=PLvUW25kBaMMupOdw1Wgy8YauiQ40J_5nx
🥾Need a reaction mechanisms bootcamp? I've got you covered: youtube.com/playlist?list=PLvUW25kBaMMtvqt_IBtezyBX_kk447pxZ
🥽As an Amazon Affiliate, I earn from qualifying purchases at no extra cost to you.
🥼My recommendations: amazon.com/shop/chemnut?ccs_id=11f20bce-5f74-427b-85fb-bdf66849405a
🔬Start any shopping journey here: amzn.to/3IXuAcS
🧪Support free education & more through Patreon! patreon.com/c/ChemistryinaNutshell
Citations:
Paula Yurkanis Bruice, "Organic Chemistry" 8th ed
openstax.org/details/books/organic-chemistry
openstax.org/details/books/chemistry-2e
Music: youtu.be/lL6AsbG07xY
0:00 The 4 Step Caterpillar Hug for Better Fischer Projections
0:37 Molecular Model from Skeletal to Fischer
1:40 Step 1: Pick Perspective
2:14 Step 2: Arch the Backbone
2:41 Trap 1: The Wedge/Dash Flip Trap
2:55 HOW TO AVOID THE TRAP
3:11 Step 3: Fischer Template
3:29 Step 4: Add Groups
3:52 Trap 2: The Right/Left Flip Trap
4:24 THE MANTRA TO AVOID THE TRAP
4:28 The Final Structure
Think you know Fischer projections? It's easy when there's only one chiral center, but everything changes when you have a 2,3-dibromobutane backbone. Learn the 4 step conversion process that works for any molecule, big or small!
Today, we're dissecting the "zig-zag" skeletal to Fischer conversion, specifically focusing on the 2-center trap that causes 90% of stereochemistry errors on exams.
We are analyzing:
• The "Viewpoint" Method for multi-center molecules.
• The #1 Chiral Center "Wedge/Dash Flip Trap."
• How to verify your final configuration (R/S).
• The Right/Left Flip Trap
🧬Are you currently knee-deep in chirality? That's here: youtube.com/playlist?list=PLvUW25kBaMMupOdw1Wgy8YauiQ40J_5nx
🥾Need a reaction mechanisms bootcamp? I've got you covered: youtube.com/playlist?list=PLvUW25kBaMMtvqt_IBtezyBX_kk447pxZ
🥽As an Amazon Affiliate, I earn from qualifying purchases at no extra cost to you.
🥼My recommendations: amazon.com/shop/chemnut?ccs_id=11f20bce-5f74-427b-85fb-bdf66849405a
🔬Start any shopping journey here: amzn.to/3IXuAcS
🧪Support free education & more through Patreon! patreon.com/c/ChemistryinaNutshell
Citations:
Paula Yurkanis Bruice, "Organic Chemistry" 8th ed
openstax.org/details/books/organic-chemistry
openstax.org/details/books/chemistry-2e
Music: youtu.be/lL6AsbG07xY
0:00 The 4 Step Caterpillar Hug for Better Fischer Projections
0:37 Molecular Model from Skeletal to Fischer
1:40 Step 1: Pick Perspective
2:14 Step 2: Arch the Backbone
2:41 Trap 1: The Wedge/Dash Flip Trap
2:55 HOW TO AVOID THE TRAP
3:11 Step 3: Fischer Template
3:29 Step 4: Add Groups
3:52 Trap 2: The Right/Left Flip Trap
4:24 THE MANTRA TO AVOID THE TRAP
4:28 The Final Structure
